CN1257965C - Lubricant for slider and preparation method - Google Patents
Lubricant for slider and preparation method Download PDFInfo
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- CN1257965C CN1257965C CN 200410012887 CN200410012887A CN1257965C CN 1257965 C CN1257965 C CN 1257965C CN 200410012887 CN200410012887 CN 200410012887 CN 200410012887 A CN200410012887 A CN 200410012887A CN 1257965 C CN1257965 C CN 1257965C
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- water
- lubricant
- slider
- soluble
- micro mist
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Abstract
The present invention relates to a lubricant for a slider and a preparation method thereof. The lubricant is used for the surface of a slider of a sliding gate of a big ladle and a tundish, which belongs to the field of the lubricant. The preparation method comprises: adding inorganic bentonite into water to be agitated and soaked for 24 hours; adding a water-solubility graphite dispersing agent, silica sol, glycol, ethanol, water-solubility compound drier, an organic binding agent and triethanolmine to be mixed in a colloid mill; adding natural flake graphite micro powder to be agitated; adding silicon carbide micro powder and a-Al2 O3 micro powder after the natural flake graphite micro powder is dispersed in mixed liquor; mixing and grinding the silicon carbide micro powder and a-Al2 O3 micro powder for 0.5 to 8 hours in the colloid mill after uniform agitation to obtain the slider lubricant. The lubricant for a slider is prepared by indigenous raw materials and has wide raw materials. Compared with imported lubricant, the lubricant for a slider reduces cost by 40% or so. The lubricant for a slider is suitable for the slider working surface of the sliding gate of the big ladle and the tundish to improve lubricating property and prevent surface scratch. The service life of the slider is equivalent to that of the slider using the imported high price lubricant and is enhanced by more than one time /set than that of the slider which does not use the lubricant.
Description
Affiliated technical field
The present invention relates to a kind of sliding gate slide board lubricant, specifically a kind ofly be used for the lubricant that big bag, tundish slide gate nozzle improve the sled surface lubricity, belong to field of lubricant.
Background technology
At present, the flow rate control device that domestic and international smelter molten steel casting is used mainly is a slide gate nozzle, slide plate is the member of most critical in all fire retarding components of slide gate nozzle, and this is determined by its special working conditions: specifically have (1) to need to contact with high-temperature molten steel for a long time; (2) under the condition that satisfies different casting process requirements, the chemical erosion and the physics that need stand molten steel repeatedly wash away; (3) mechanical wear in the time of need bearing violent thermal shocking of high-temperature molten steel and switching between slide plate etc.Therefore, require slide plate must have high strength and good thermal-shock resistance, corrosion resistance, abrasion resistance.Simultaneously, for the switching that realizes the smoothly slide plate function with the control molten steel flow, flatness, the depth of parallelism, size and the greasy property etc. of sled surface all there is strict specification requirement.Because the friction of use procedure middle slide plate working face, cause that the slide plate action is insensitive, working face scratches, bring difficulty for the control of molten steel flow, simultaneously, also aggravated the erosion of slide plate working face, reduced the service life of slide plate.For this problem, carried out the research of sliding plate lubricant coating abroad, and obtained certain effect.As: the big new chemical industry and the Wei Suwei advanced ceramic company of the U.S. etc. of Japan have produced sliding plate lubricant coating in the eighties in 20th century, the existing application in Iron and Steel Enterprises in China, the composition of import lubricant is all kept secret, its weak point is a valuable product, seriously restricted the reduction of STEELMAKING PRODUCTION cost, the cost performance of practical application simultaneously is not very desirable, and the slide plate of Iron and Steel Enterprises in China is generally 1～2 time/cover actual service life at present.China has also carried out the research of sliding plate lubricant coating in latter stage in 20th century, but the more outstanding product large-scale application of Shang Weijian.
Summary of the invention
The object of the present invention is to provide that a kind of preparation method is simple, the starting material source is wide, preparation cost is low and the sliding gate slide board lubricant of excellent property, the mean lifetime that makes slide plate with use external high price lubricant suitable, than do not make with lubricator slide plate improve 1 time/more than the cover.
The present invention in order to achieve the above object, a kind of sliding plate lubricant coating is provided, it is characterized in that raw material components by weight percentage % count: natural flake graphite micro mist 20～30, inorganic bentonite 0.05～1, water-soluble graphite dispersing agent 0.05～0.5, Ludox 8～16, ethylene glycol 2～4, ethanol and water-soluble drier 2～7, the organic bond 4～12 that the composite emulsion of water-soluble polypropylene acid resin or polyurethane latex or two kinds consists of, triethanolamine 1～5, the silicon carbide micro-powder 2～6 of 1～2 μ m, α-Al
2O
3Micro mist 1～6, surplus are water.
Sliding plate lubricant coating of the present invention is characterized in that the natural flake graphite micro mist described in the component is 1000～3000 orders, the concentration 29% of silicon sol.
It is the lubricant main raw material(s) that sliding plate lubricant coating of the present invention has been selected the natural flake graphite micro mist, and inorganic bentonite is a suspension agent, and selection water is dispersible carrier, the dispersion agent that to have selected homemade water-soluble graphite dispersion agent be lubricant; Having selected the composite emulsion of water-soluble polypropylene acid resin or polyurethane latex or two kinds is organic bond, the selection silicon sol is an inorganic bonding agent, select trolamine for protecting jelly, selection ethylene glycol is membrane-forming agent, selecting ethanol and commercially available water-soluble siccative is composite drier, selecting silicon carbide and silicon-dioxide is antioxidant, and selecting aluminium oxide powder is the agent of filling up of slide plate working face.
It is the primary lubricant composition that sliding plate lubricant coating of the present invention is selected with the crystalline flake graphite micro mist, and water is dispersible carrier, is coated with four glasss of values and is about 60～120 seconds.Because himself not wetting property of crystalline flake graphite micro mist; generally be difficult in water, disperse; but; lubricant can adopt the natural flake graphite of extreme high purity by after micronization and the micellerization; mix with water-soluble wedding agent; under the effect of water-soluble wedding agent, oildag is homodisperse on sled surface, forms very good filming.Owing to there is this to film, can fill up the concavo-convex defective of the remained on surface that slide plate causes because of mechanical workout in use, make sled surface smooth smooth, and under low friction load, slide flexibly, make slide plate also have good anti-dry slag, anti-wetting property simultaneously.This shows that the key problem in technology of sliding plate lubricant coating preparation is the preparation of crystalline flake graphite micro mist and the development of dispersion technology and wedding agent.The present invention is according to the actual performance requirement of slide plate, from reducing the angle of lubricant preparation cost, select domestic raw materials for use comprehensively, according to the processing and preparing present situation of domestic natural flake graphite powder and the granularity situation of commercially available powder, having selected 1000～3000 purpose natural flake graphite micro mists is the lubricant starting material.
On the basis that above-mentioned raw material are selected, be 30%～40% to 70%～60% to be lubricated formula Design and the preparation of agent according to percetage by weight meter solid and flowing fluid ratio.
The present invention also provides the preparation method of above-mentioned sliding plate lubricant coating, it is characterized in that: get the raw materials ready earlier, percentage % counts natural flake graphite micro mist 20～30 by weight, inorganic bentonite 0.05～1, water-soluble graphite dispersing agent 0.05～0.5, Ludox 8～16, ethylene glycol 2～4, ethanol and water-soluble drier 2～7, the organic bond 4～12 that the composite emulsion of water-soluble polypropylene acid resin or polyurethane latex or two kinds consists of, triethanolamine 1～5, the silicon carbide micro-powder 2～6 of 1～2 μ m, α-Al
2O
3Micro mist 1～6, surplus are water; Inorganic bentonite is added to the water stirs fully expansion, soak after 24 hours, add water organic bond and triethanolamine that the composite emulsion of dissolubility graphite dispersing agent, Ludox, ethylene glycol, ethanol and water-soluble drier, water-soluble polypropylene acid resin or polyurethane latex or two kinds consists of, after in colloid mill, mixing fully, adding the natural flake graphite micro mist stirs again, treat that the natural flake graphite micro mist disperses in mixed liquor after, add again silicon carbide micro-powder, α-Al
2O
3Micro mist, after stirring in colloid mill mix grinding 0.5～8 hour, namely get sliding plate lubricant coating.
Sliding plate lubricant coating of the present invention has following advantage:
1. sliding plate lubricant coating of the present invention can significantly improve the lubricity of slide plate working face, avoids the scuffing of use middle slide plate working face, improves the sensitivity level of slide plate action.
2. sliding plate lubricant coating of the present invention is owing to adopt domestic commercially available various raw material preparing comprehensively, and raw material sources are extensive, and cost is compared with imported product and reduced about 40%.
3. sliding plate lubricant coating of the present invention is suitable with external high price lubricant serviceability, and the average life span of slide plate is than not making with lubricator raising more than 1 times/set.
Embodiment
Sliding plate lubricant coating of the present invention is described in further detail in conjunction with the embodiments:
Embodiment 1: adopt 1 kilogram of slide board lubricating coating of domestic commercially available various raw material preparing.Percentage % counts by weight: the silicon carbide micro-powder 4 of 1000 purpose natural flake graphite micro mists, 25,1～2 μ m, α-Al
2O
3Micro mist 3, concentration are 29% Ludox 10, water-soluble polypropylene acid resin 5, and triethanolamine 2, ethylene glycol 3, ethanol 2, commercially available water-soluble drier 2, inorganic bentonite 0.3, water-soluble graphite dispersing agent 0.2, surplus is water.Earlier inorganic bentonite is added to the water and stirs fully expansion, after the soak time 24 hours, add water dissolubility graphite dispersing agent, Ludox, ethylene glycol, ethanol and water-soluble drier and water-soluble polypropylene acid resin and triethanolamine, after in colloid mill, mixing fully, adding the natural flake graphite micro mist stirs again, treat that graphite microparticles disperses in mixed liquor after, the silicon carbide micro-powder that adds again, α-Al
2O
3Micro mist, the laggard colloid mill mix grinding 1 hour of stirring makes sliding plate lubricant coating of the present invention.To be coated with four glasss of values be 50～90 seconds to the lubricant of preparation, and carried out brushing and the actual industrial test of 5 covers time at the slide plate working face of steel mill ladle slide gate in billet, and be 2.5 times/sets slide plate average life of test.After the test, sled surface remains with fine and close lubricant coating, the coating surface light, and the scuffing vestige that slides and cause is arranged, obtained the result of use suitable with external sliding plate lubricant coating.Compare with the slide plate of brushing lubricant not, improved 1.5 times/sets average life, the lubricant cost is compared with imported product and is reduced about 40%.
Embodiment 2: adopt domestic commercially available various raw material to prepare sliding plate lubricant coating according to following component, percentage % meter is got the raw materials ready at first by weight: the silicon carbide micro-powder 5 of 3000 purpose natural flake graphite micro mists, 28,1～2 μ m, α-Al
2O
3Micro mist 4, concentration are 29% Ludox 14, soluble polyurethane latex 8, and triethanolamine 3, ethylene glycol 4, ethanol 4, commercially available water-soluble drier 3, inorganic bentonite 0.2, water-soluble graphite dispersing agent 0.1, surplus is water.The production method of pressing embodiment 1 adds the raw material order, after stirring in colloid mill mix grinding 8 hours, namely get sliding plate lubricant coating of the present invention.To be coated with four glasss of values be 50～90 seconds to the sliding plate lubricant coating of preparation, carried out brushing and the type approval test of many covers time at the slide plate working face of steel mill ladle slide gate in billet, and be 2.66 times/sets slide plate average life of test.Test tail skid surface remains with fine and close lubricant coating, the coating surface light, and the scuffing vestige that slides and cause is arranged, show and used lubricant can protect the working face of slide plate.The actual use of sliding plate lubricant coating of the present invention has obtained the effect identical with using external sliding plate lubricant coating, compares with the slide plate of brushing lubricant not, has improved 1.66 times/sets average life, and the lubricant cost is compared with imported product and reduced about 40%.
Sliding plate lubricant coating of the present invention is applicable to the slide plate working face of big bag, tundish slide gate nozzle, to improve lubricity, prevents surface tear, improves slide plate work-ing life.
Claims (3)
1. sliding plate lubricant coating, it is characterized in that raw material components by weight percentage % count: natural flake graphite micro mist 20～30, inorganic bentonite 0.05～1, water-soluble graphite dispersing agent 0.05～0.5, Ludox 8～16, ethylene glycol 2～4, ethanol and water-soluble drier 2～7, the organic bond 4～12 that the composite emulsion of water-soluble polypropylene acid resin or polyurethane latex or two kinds consists of, triethanolamine 1～5, the silicon carbide micro-powder 2～6 of 1～2 μ m, α-Al
2O
3Micro mist 1～6, surplus are water.
2. according to the described sliding plate lubricant coating of claim 1, it is characterized in that the natural flake graphite micro mist described in the component is 1000～3000 orders, the concentration 29% of silicon sol.
3. method for preparing the sliding plate lubricant coating of claim 1, it is characterized in that: get the raw materials ready earlier, percentage % counts natural flake graphite micro mist 20～30 by weight, inorganic bentonite 0.05～1, water-soluble graphite dispersing agent 0.05～0.5, Ludox 8～16, ethylene glycol 2～4, ethanol and water-soluble drier 2～7, the organic bond 4～12 that the composite emulsion of water-soluble polypropylene acid resin or polyurethane latex or two kinds consists of, triethanolamine 1～5, the silicon carbide micro-powder 2～6 of 1～2 μ m, α-Al
2O
3Micro mist 1～6, surplus are water; Inorganic bentonite is added to the water stirs fully expansion, soak after 24 hours, add water organic bond and triethanolamine that the composite emulsion of dissolubility graphite dispersing agent, Ludox, ethylene glycol, ethanol and water-soluble drier, water-soluble polypropylene acid resin or polyurethane latex or two kinds consists of, after in colloid mill, mixing fully, adding the natural flake graphite micro mist stirs again, treat that the natural flake graphite micro mist disperses in mixed liquor after, add again silicon carbide micro-powder, α-Al
2O
3Micro mist, after stirring in colloid mill mix grinding 0.5～8 hour, namely get sliding plate lubricant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012887 CN1257965C (en) | 2004-03-23 | 2004-03-23 | Lubricant for slider and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012887 CN1257965C (en) | 2004-03-23 | 2004-03-23 | Lubricant for slider and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563300A CN1563300A (en) | 2005-01-12 |
| CN1257965C true CN1257965C (en) | 2006-05-31 |
Family
ID=34478039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410012887 Expired - Fee Related CN1257965C (en) | 2004-03-23 | 2004-03-23 | Lubricant for slider and preparation method |
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| Country | Link |
|---|---|
| CN (1) | CN1257965C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101161800B (en) * | 2007-09-18 | 2010-06-02 | 朱辰 | Aqueous suspension grinding fluid |
| CN101497529B (en) * | 2009-02-23 | 2012-05-02 | 无锡成博科技发展有限公司 | Slide board lubricating coating and preparing process thereof |
| CN101643614B (en) * | 2009-08-14 | 2012-01-25 | 机械科学研究总院先进制造技术研究中心 | High temperature oxidation resistant environment-friendly coating with lubricating and heat conducting functions |
| CN102173837B (en) * | 2011-01-27 | 2013-06-19 | 无锡成博科技发展有限公司 | Lubricating coating of high-temperature oxidation resistant sliding plate and preparation process thereof |
| CN102660162B (en) * | 2012-05-10 | 2013-09-04 | 张家港拓普新材料科技有限公司 | Sliding plate protective coating for sliding water gap in steel-making continuous casting equipment |
| CN104479473A (en) * | 2015-01-14 | 2015-04-01 | 佟永良 | Sepiolite-based high-temperature sliding plate lubricating coating and preparation method thereof |
| CN112646428B (en) * | 2020-12-21 | 2022-03-29 | 马鞍山利尔开元新材料有限公司 | Coating for converter slag-stopping sliding plate brick and preparation method thereof |
| CN114940919B (en) * | 2022-05-25 | 2023-06-30 | 南京钢铁股份有限公司 | High-temperature lubricant for quick water change port of tundish and preparation method thereof |
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2004
- 2004-03-23 CN CN 200410012887 patent/CN1257965C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1563300A (en) | 2005-01-12 |
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Granted publication date: 20060531 Termination date: 20100323 |